561011525436525 has 48 divisors (see below), whose sum is σ = 939225984171840. Its totient is φ = 295455856460800.

The previous prime is 561011525436463. The next prime is 561011525436553. The reversal of 561011525436525 is 525634525110165.

It is not a de Polignac number, because 561011525436525 - 2¹² = 561011525432429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 120761211 + ... + 125320760.

It is an arithmetic number, because the mean of its divisors is an integer number (19567208003580).

Almost surely, 2^{561011525436525} is an apocalyptic number.

It is an amenable number.

561011525436525 is a deficient number, since it is larger than the sum of its proper divisors (378214458735315).

561011525436525 is a wasteful number, since it uses less digits than its factorization.

561011525436525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246082366 (or 246082361 counting only the distinct ones).

The product of its (nonzero) digits is 5400000, while the sum is 51.

The spelling of 561011525436525 in words is "five hundred sixty-one trillion, eleven billion, five hundred twenty-five million, four hundred thirty-six thousand, five hundred twenty-five".